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Finding the Fourth Proportional to 399,841.25, 599,792.85 and 133,602.70

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Solution

The fourth proportional to 399,841.25, 599,792.85 and 133,602.70 is: 200,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,841.25 : 599,792.85 = 133,602.70 : x
  2. Step 2: Convert to fraction form
    399,841.25/599,792.85 = 133,602.70/x
  3. Step 3: Cross multiply
    399,841.25x = 599,792.85 × 133,602.70
  4. Step 4: Simplify right side
    399,841.25x = 80,133,943,825.82
  5. Step 5: Solve for x
    x = 80,133,943,825.82/399,841.25
  6. Step 6: Final answer
    x = 200,414.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.